The House version of the bill specifies only “airports, bridges, canals, dams, dikes, pipelines, railroads, multiline mass transit systems, roads, tunnels, harbors, and piers” — no electrical grids there.

Clause (b)(2) of BOTH the House and Senate bills carves out an exception when relevant materials/goods are “not produced in the United States in sufficient and reasonably available quantities and of a satisfactory quality”, so presumably GM would not be forced to swap superior batteries for inferior ones — of course, since batteries aren’t even covered by the legislation this point is irrelevant

I’m not sure where you acquired the idea that just because Ford might theoretically accept a government bailout, this would mean that it could no longer source batteries outside the US. As far as I can tell, this is nowhere in the legislation, or indeed anywhere in the political discourse.